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55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include "AudioCommon.h"
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#include "NullSoundStream.h"
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#include "../../Core/Src/HW/SystemTimers.h"
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#include "../../Core/Src/HW/AudioInterface.h"
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void NullSound::SoundLoop()
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{
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}
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bool NullSound::Start()
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{
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return true;
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}
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void NullSound::SetVolume(int volume)
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{
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}
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void NullSound::Update()
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{
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// num_samples_to_render in this update - depends on SystemTimers::AUDIO_DMA_PERIOD.
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const u32 stereo_16_bit_size = 4;
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const u32 dma_length = 32;
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const u64 audio_dma_period = SystemTimers::GetTicksPerSecond() / (AudioInterface::GetAIDSampleRate() * stereo_16_bit_size / dma_length);
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const u64 ais_samples_per_second = 48000 * stereo_16_bit_size;
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const u64 num_samples_to_render = (audio_dma_period * ais_samples_per_second) / SystemTimers::GetTicksPerSecond();
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m_mixer->Mix(realtimeBuffer, (unsigned int)num_samples_to_render);
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}
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void NullSound::Clear(bool mute)
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{
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m_muted = mute;
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}
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void NullSound::Stop()
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{
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}
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